Metallic window-screen



E. LUFT. Mimmo wmoow SCREEN. APPLFCATION FILED FEB. l0. 1919.

Patented May 11,1920.

2 SHEETS-SHEET l.I

/ INVENTOH! f v/ f Edward J .er 4 6 A fawn,

E. LUFT.

METALLIC wlNnow SCREEN.

APPLICATIQN FILE? 113.1011919.

Patented May 11, 1920.

2 SHEETS--SHEET 2 INVENTOH.'

EDWARD LUFT, OF ST. LOUIS, MISSOURI.

METALLIC WINDOW-SCREEN.

Specication of Letters Patent.

Patented May 11, 1920.

i Application iiled February 10, 1919. SerialNo. 276,026.

Louis, in the State of Missouri, have in-- vented certain new and useful Improve- "ments in Metallic IVindow-Screens, of which the following is a specification containing a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to an improved allmetal window-screen, that is adjustable and transformable; and it consists in the novel construction and combination of parts hereinafter particularly described and claimed. The object of my invention is to provide an improved all-metal window screen that shall be adjustable to different sizes of windows; transformable to either a half window lor a whole window; that shall be simple, cheap, and reliable, as wellas durable; and that shall be devoid of all tacks, screws, or nails, the woven-wire fabric being secured in place 'by crimping the metal of the members of the frame upon its edges.

- In the drawings,

Figure 1 is a front elevation of one of my lsliding frames, detached from its connecting-bar, and separated from its companion frame. i

Fig. 2 is a vertical section through the same,.taken on the line 2-2 of Fig. 1, the parts being shown thicker than they are in actual practice, as compared to their size, for the sake of clearness.

Fig. 3 is a detail plan-view, partly in section, of one corner (the top left-hand corner). of the sliding frame shown in Fig. 1, looking in the direction indicated by the arrow 3. l

Fig. 4 is a detail inverted plan-view of one of the connecting-bars, that is used in coupling two sliding frames.

' Fig. 5 is a detall cross-section through the said bar, taken on line 5-5 of Fig. 4.

Fig. 6 is a detail edge-view of said bar, partly in Section, the section being taken on line 6-6 of Fig. 4.

Fig.` 7 is a detail view of the top left-hand corner of the frame shown in Fig. 1, with the connecting-bar, or slide-bar, in place thereon.

Fig. 8 is a cross-section, partly broken awa of a pair of sliding frames arranged in s iding relation, back-to-back, and coning,

nected at their opposite edges by the opposite connecting or slide-bars, and

Fig. 9 is an elevation of the pair of connected sliding frames, transformed to cover an entire window, in a window-frame..

In the present illustration of my invention, I provide a pair of the sliding frames, like the one shown in Fig. 1, which are made entirely of metal, and composed of opposite end-bars 1, opposite side-bars 2, and woven-wire fabric 3 secured to said bars solely by crimping, and without the use of tacks, screws, nails or other fastenings, as shown more clearly in Figs. 2 and 8.

Said end and cross bars 1 and 2 are each made by taking a suitable strip of sheetvmetal-and doubling it upon itself longitudinally, and then bending the doubled portions again longitudinally of the strip, until the free edges extend at a right-angle to the main doubled body or guide-flange4, the edgesl of the said fabric 3 being prevlously placed in the space between said doubled parts, so that when said parts are forcibly pressed into Contact with said fabric the latter will be secured effectually and permanently'in said space solely by said operation, which I term crimping, no other fastening for said fabric being necessary; the

fabric being of course stretched tightly before its edges are secured to said bars.

As shown in Figs. 1 and 9, the end portions of said bars 1 and 2 overlap at the corners of the frame, and they may be' secured together thereat by soldering, brazor by welding, in a well-known manner, in case it is desired to `make the frames very stiff, and to hold them permanently in a rectangular form; but ordinarily the crimping operation will hold them in rectangular form, without resorting to soldering or the like.

In use, a pair of sliding frames, as above described,'are placed back-to-back, as shown in Figs. 8 and 9, with their opposite pairs of gu1de-anges4 projecting in op osite directions at opposite edges of sai frames, and slidin ly connected thereat by means of metallic sllde and guide bars, that are shown in detail in Figs. 4, 6 and 8. The said slide and guide bars, composed of said guideanges 5 on their opposite edges and other en h of the upper and lower bars l of said sli ing frames, and act as a stifening and protection to said upper and lower bars,

partshereinafter described, extend the full l l throughout the length of the latter, except when the sliding frames are extended as shown in Fig. 9.

Said slide and guide bars are composed of a strip of metal formed with guideiianges 5 at its opposite edges, formed by bending the edges as shown in Fig. 5, so that a space 6 will be provided between said'bent edges and the body of the metal, in whichl space the said guide-flanges 4 of said frames will freely slide, in adjusting said frames to -fit any size of window-frame. Integral endlugs 8, on the opposite ends of the said slide and guide bars, are bent inwardly at rightangles to the body of said bars, and enga-ge the adjacent vertical bars 2 of said sliding frames, for the purpose of locking said slide bars in position upon their respective sliding frames-that is, to lock each of said slide bars to the particular fra-me of which it forms a specific part, and with which it slides. i

In F ig. 9 I have shown my pair ofv frames transformed to cover the entire-fwindowopening of theA common window-frame l, in

which case the screen-carrying frames are slid vertically upon each other, until they lill the entire window.

In Fig. 9 the screen frames are shown turned on their sides, so that the said top and bottom bars l are located at the sides of the window, while the said cross bars 2 occupy positions at the top and bottom of the.

slidingv frames.

In cases where lit is not desired to ll the entire window, the pair of sliding frames are adjusted horizontally upon each other, and are to be placed horizontally in the space below the raised lower the usual manner in which common pairs of sliding screens are used.

The operationof my invention will be obvious from the above description.

I claim:

1. An improved adjustable sheet-metal window-screen, comprising top and bottom slide-bars extending the full length' of the screen-frame to which they are attached7 and a pair of sheet-.metal screen-frames carrying woven-wire fabric and slidingly-connected to said top and bottom slide-bars.

2. An improved adjustable metallic window-screen, comprising a pair of sheetmetal frames having opposite fabric-holding bars at their edges; opposite ones of said Kbars having guide-flanges extending at a sash (not shown), inv

right-angle from same, in opposite direc- EDWARD LUFT.

Witnesses:

FRANCES I-IoovERl RosENBA UM, J oHN C.H1GD0N. 

